Valve



FIG. 1 is a front, left side and top perspective view of a valve comprising a new, original and ornamental design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the valve and form no part of the claimed design. 

CLAIM The ornamental design for a valve, as shown and described. 